Metoprolol Side Effects

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Common Side Effects of Metoprolol

Metoprolol has been studied extensively in people with high blood pressure, angina, and congestive heart failure. In these clinical studies, side effects are always documented and compared to those that occur in a similar group of people not taking the medicine. Based on these studies, the most common metoprolol side effects include:

Slow heart rate -- in up to 16 percent of people
Tiredness -- up to 10 percent
Dizziness -- up to 10 percent
Diarrhea -- up to 5 percent
Itching or unexplained rash -- up to 5 percent
Depression -- up to 5 percent (see Metoprolol and Depression)
Shortness of breath -- up to 3 percent.

Other common side effects of metoprolol (occurring in more than 1 percent of people) include but are not limited to:

Cold, tingling, or numbness in the hands or feet
Congestive heart failure
Swelling of the arms, legs, hands, or feet
Low blood pressure
Wheezing
Shortness of breath
Nausea
Dry mouth
Constipation
Heartburn
Gas.

Rare Side Effects Seen With Metoprolol

Rare metoprolol side effects occur in less than 1 percent of people taking the drug. Given how rarely they occur, however, it can be difficult to tell whether these side effects are actually caused by the medication or something else.

Some of these rare side effects of metoprolol include but are not limited to: